{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x14c23ffa1ff0d26cde9cf235f9a554845dc5d20fd39441a143a6f2dff68788bf",
    "signature": "0xdea26f7403b816c7e9587bb0e9c0c07c69017108f56ddc140455de7ec56fc02c01acfc1fb930aba9d1043b2affea3251b937f4f47685c891456c3590b138a99f1c",
    "signer": "0xA6A22A670AE072B9E536b3f5450c5817bB3Eab81",
    "userId": "345612795"
  }
}