{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x0ce12de1ce6c164168764ee07f48e2d21bae9def89f0c590bd47578c67c393e5",
    "signature": "0xae0f4572bb4349824e593e4153cac4f391d8d6ff7e8f9255b682de5845cad06134946ef6e344d5eb711f8174209bc79f9961a5f4371bd9adf2636ec2f1cafa421c",
    "signer": "0x5abad058d33E1C0C0A69d85BA3181678C1721765",
    "userId": "632918751"
  }
}