{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "138734",
    "entityType": "User",
    "nonce": "0x4f66772406a5e6f3e004358d51191af7c4d58c1a8eb3e6fd291bb133101b41aa",
    "signature": "0x1b02a32ce221d8fa5c125b4fe48bcfa898a4f12e1970fb1a0f1fe2b1c452c11909b20ac0c13403fed3e64615cf08b719ce0ae812deace1fc4cf5c116bb6967c61b",
    "signer": "0x96818aB6687d2E9bA070EB1d6843ef7BfEF5cDa4",
    "userId": "806873848"
  }
}