{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "115138",
    "entityType": "User",
    "nonce": "0x9865b70f1250256978f93747893f02b299586280cad1f4fdd8134aeec6cc0902",
    "signature": "0x7015c3e2600f2f4304b46d7705e9f6f0639d375b5b28ee38aa6cf7fe2e4dc5987d58b08171e4965cf894c6b9fa4c39b0bcfec4f7f654e78683fb6daa045d43891c",
    "signer": "0x55F8937EF7902E83b15F5BB7c7bf72a0a2989C54",
    "userId": "233666542"
  }
}