{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "16251128",
    "entityType": "User",
    "nonce": "0x087732360bd512f447bf88187a6d25bc581f406ac5630125eadcc433ef805c22",
    "signature": "0xdc96daa978a7195258c7899f1146d023f7aa986dc68616648cd9a67de882e81346ca0b9b56f78da76a83ccd0740ec2a99ca3126cb49492c9c2428fb80dc0b3131c",
    "signer": "0x84B42609E987DD0953e02498E61987fB833B7C92",
    "userId": "887547386"
  }
}