{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x7b713c51bf6e2b66dae74b38a2d8be2285b02bfe6ea504fbe9822d058e979fdc",
    "signature": "0xbfce4852a6f54e6949ebb54222ce171978cb9a89b5ff8e09112ae520b03e5c7910a6a34eb8169edd900d1715cfcdfc7ea40476a98c4fd91bfd131f418c529e1c1b",
    "signer": "0x736A5D5caFc62d76542717D2688Cd344111165FA",
    "userId": "560390284"
  }
}