{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "620307004",
    "entityType": "User",
    "nonce": "0xd0af053dc63fcb210c0334e41cbd5148e8efd28947cceb65a9ba2ec50dd556e0",
    "signature": "0x4451b790a77a678682e5423ce60d452ddca481408221475aa90810c9ec76a51d718554c565140b16ca64eade9ea49df05cabd9fc9ce1284cb671a1ba907a90181b",
    "signer": "0xf8ABf39f2F6744d86520F59beE235a7E0D589148",
    "userId": "432118704"
  }
}