{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "56845",
    "entityType": "User",
    "nonce": "0x7d61571ca2e49d03756b45c07c2faf6a0aeee52f7392722ef72e30bccd7c522d",
    "signature": "0x4786eed80d6c9173de40cb3e0f6a41d646ed6bfa0fcda6fe6025cc832cd15f442adc23e9e618f9990202ef5909ccc9185a11effbe7340462c6ea35b33d8446691b",
    "signer": "0x55F8937EF7902E83b15F5BB7c7bf72a0a2989C54",
    "userId": "233666542"
  }
}