{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "395863",
    "entityType": "User",
    "nonce": "0xf6ee4be338b9548d7705ba18acea04017c69ebff015adbc060c57010ab31d789",
    "signature": "0x155212e2bb98b1f5c876c86a549a05b5d12027d74d19b89bcfc1d103582ecaf4252822622755610abe516a46bcab81393027700b543343d47a5da3d32b8757f11c",
    "signer": "0x45c4f1dcE13eeF476C74C5758696D56137253980",
    "userId": "824478223"
  }
}