{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "15653",
    "entityType": "User",
    "nonce": "0x178e53c2d1b66118d0d46676eb73f53e4be3a342f39ec16a4c5f2f4d150fe293",
    "signature": "0xf61a0e90e8129c0d71759a54e35f340ab6a61ba469a9ab9350cb9133277c89482a2e5b7378849a16c94f9c40d000dc879677c3bd0fd8109554e9afe2090152001c",
    "signer": "0x84B42609E987DD0953e02498E61987fB833B7C92",
    "userId": "887547386"
  }
}