{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x9b2e1892850f21ee17b4546b9aacb2895476a14f1be37ea2971ce28e71d64920",
    "signature": "0x15cbe418e8c9bafc3ba93090a98e34f6b71827c35ff62e99aceec6e067667655074d8070dc8bd11acfe514d20a8f2b88c033b8fc7689af0e10fa2ee1583234771b",
    "signer": "0x809Af38f648Ec843FE477520d04180959B398E6C",
    "userId": "105767814"
  }
}