{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "270471",
    "entityType": "User",
    "nonce": "0x28096bbac4bf2f2f30eaca6697173d1a27c03c8a076cedad92844133abc7584a",
    "signature": "0x34b54f67d48394acdb644d2421ce8449b04173915e16efc33c30a123f966ef707bcf930908aa14e8a6ef8cf9fdcc42b65aecd7750e22b025c6601d4771e56ee91c",
    "signer": "0x55F8937EF7902E83b15F5BB7c7bf72a0a2989C54",
    "userId": "233666542"
  }
}