{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x6285a7a5fc7e7a21a11655f655179ba8d1350440b4909f27bbed3c42cde9fe15",
    "signature": "0x5b463f3afb327227c8debdc5f6c730ee139bf6ee531e594419dc56cfb077a41e325d9db23b3f7774232558de7d5210252ea51bef3b4bca6c0bcda45f23b658ad1c",
    "signer": "0x804Df1957AFd3D477CA130c7b52FECb0E2413520",
    "userId": "130290943"
  }
}