{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "135001920",
    "entityType": "User",
    "nonce": "0x63e78b69aa22a4bd7bf5657f40e53cf3dee69433ca562b9b4f87537eb464ac3e",
    "signature": "0x57953dfb5ab4904e2b4e75c2bc6c0ff7ea56213eb76fefe1ef0c4764536e348602f10ac2626490b934f729955bde16cfea6c39b99f74b0001215dae657ba8a6c1b",
    "signer": "0x94e0dDC50579175818AaCFBC9aba8B065fEf2a55",
    "userId": "460147282"
  }
}