{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "138854",
    "entityType": "User",
    "nonce": "0x33877a2d0ec66598fb0bb1e81023a0c3ab8f02cc9330d1483c66cd1895e099c3",
    "signature": "0x81cafeb223312a4070b46bb69e9fc55716b3ac4595ab1b8249485172e0a99d865417cc8ad81d8c943ca243c11574f22c2a51974c2de9b969745ba28d8eb3b0721b",
    "signer": "0x94e0dDC50579175818AaCFBC9aba8B065fEf2a55",
    "userId": "460147282"
  }
}