{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0xdc8154462a0eec5b9abb83d8ef666616ed65ef0ef16a2d841c9b8c6a7bcb7b60",
    "signature": "0xf04ab9d0bb3146e89e1531d1af9054978e3aa1059b359022f8fee27aea0a6e5e44a1a83096a6c3671847fd3d342ae4a1f2c4f8aede81e11013be197573e2762a1c",
    "signer": "0x0e43F9Ea8F9591c737130cccfE675B81eE87cF7a",
    "userId": "664753431"
  }
}