{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "708077815",
    "entityType": "User",
    "nonce": "0x56c1ee02d3356e45135ed0268c098ccce710699e03021553bf3c47641a82ec46",
    "signature": "0x1dc85f4668a0c382eb7a05ea8b446271926c264e5f8bfeadbd5ee434959945e72548e2bf351b1cd189b99dd1af53e7b3934fb22501b98edd9ed316815d060e431b",
    "signer": "0x84B42609E987DD0953e02498E61987fB833B7C92",
    "userId": "887547386"
  }
}