{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "271210185",
    "entityType": "User",
    "nonce": "0x32b7aa49fc6cb60af936649dd596e8143cd76554c94849efaa93e5187c8cceba",
    "signature": "0x8a9e49d0c80d0f4d1168f7067a683bcd7757f6bda86a62d7ecb2b642b32aa3a85cc30b8582b3177798fd286a2bcf4acb4db6abfadb26c0c7af339e3f61206ff41c",
    "signer": "0x7451Cf52e883bc4483b88591c194dc3942E7F191",
    "userId": "584186978"
  }
}