{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "73852",
    "entityType": "User",
    "nonce": "0x2c4089855ca23cbe80916a1997a41bd308fb6a474d0913acbe372c487dbf668f",
    "signature": "0x7cbbdf4d714f6594a295391e7ac0e1b2542e4988838ba7db52283442a87e5db20619508b7cddc5e01accac25b13ce019deeb24cd4b111eec55d2d6f54eb448261b",
    "signer": "0xa2DaB1ebF6D10325b0948C994b592F7abB2Df44C",
    "userId": "728570067"
  }
}