{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0xf0fc15aefb9c2c80e95b3d253ecc800607268bad531232cf758a28441a111d5f",
    "signature": "0x44b3e7100e9ee4bfb98293b631d184332d60c3c4080a727a7ddd46fddb0f82624487ffa3567b9994c37bf33eea5c72bfce9255377f6b198b2ea215718f490eef1c",
    "signer": "0xAF99D345695fc8753ee50ef8c9606a52BAbcfCEa",
    "userId": "216819909"
  }
}