{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "87019",
    "entityType": "User",
    "nonce": "0x03daaecf9b7a3ad5f4bf2d3300aa3383b89eb7091a0238108ee70549cf89d51d",
    "signature": "0xd0b7d05171ae3cf7ca47cf2b4bef45b9a5bc6baf3f779a422290d7bb710113717a07a7ec6243b40b0a091f500cfea8190e8acceca2fa8355df197765ebc360341c",
    "signer": "0xa2DaB1ebF6D10325b0948C994b592F7abB2Df44C",
    "userId": "728570067"
  }
}