{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "3571",
    "entityType": "User",
    "nonce": "0x9ff56e275cfd22ffb77da33b4e3c723edc2d6821cc596e9bbb80b72e4eb5b158",
    "signature": "0x25b657b3304635243cf02b2e56e3779d43ad5e0b5bf043451f66ebd97c4866476ee0470797de8a958b119d13498150658e3316aa533b302704f0d937be6e24181c",
    "signer": "0x5fa60F185681545769de01098bB8F29cfbaE3cF0",
    "userId": "489026160"
  }
}