{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "325172820",
    "entityType": "User",
    "nonce": "0xf86c0b7466f31cbb54747031c68a282f5c95a1d2f6937691ecd3c8b42bea9d14",
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    "signer": "0x0E6Ef8dF2F401D8918d603B82ef321D94A721556",
    "userId": "648802251"
  }
}