{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "108641",
    "entityType": "User",
    "nonce": "0xdba672a311dcaa0dd1f8a924a5f12c0ccbf97b762601a8e70f9c6c059c6e472a",
    "signature": "0xf2c9508bc32d31a56acef9016cf52c1e1f7b3c0250b1eb1d6701f5f24bfede2902237d66f5732db5fb3618ad9e852c772c2930ed6b9ca5b1012411226c579d971b",
    "signer": "0x712Aca9aA6ac07F98dcEC338Be9C15c3Dc47d569",
    "userId": "12730129"
  }
}