{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "282087285",
    "entityType": "User",
    "nonce": "0x9854ec6bdc824a8e93c40182b7f11fe279b81da1ab2cf117d05ddaec2dcd4564",
    "signature": "0xdc4d1bbc423f204253900b8cffb52a8e7e67459bdf21afa5d792249f2c7e0815219db0fdd98597bcb62c2f859c7f2fa28e4e70ce25c33207971ac4ae42a1ba631c",
    "signer": "0x243A439c272133AEEE0073AF4986dE391C430866",
    "userId": "77551267"
  }
}