{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "9611",
    "entityType": "User",
    "nonce": "0xa8be0f1431d1bf79b1d8fa71cd7aa4dfa301f53514a268930e664e4375a7edb2",
    "signature": "0xb384fa59a0888c67e331deefc41980187acd07739ad388ab0b63a97afa9dd3581ffba7256b93dcf3984bc016e9a44f3614b5013ffe9e9b7974ba342ad2fe60071b",
    "signer": "0x243A439c272133AEEE0073AF4986dE391C430866",
    "userId": "77551267"
  }
}