{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "964612383",
    "entityType": "User",
    "nonce": "0x2708271e765570c89d21a4e8a538136d306cb70717d7a3539b0e935661843353",
    "signature": "0x0d63eb67221e9defdcf086e3c1f8a513f228059ce10b29b53f67558744ccd5793b419ec2baceb7959473ae96852ccbb07ec91ba67a3c708f1cd37c6853af60dc1b",
    "signer": "0xa899e54a1aE2f8D645E14e3E1EBF6398971ece5A",
    "userId": "906687997"
  }
}