{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "976458054",
    "entityType": "User",
    "nonce": "0x03e25e9d40bd561a1ed863bf3866301f372fc41bdf3afce986d6aad070ded087",
    "signature": "0xd00d3e8d3c7fc1f2398798486d22cd7ac9a33ee33323a155106a03825d18fd2d190a044a67683c9e49d4d935acdc376e105df0bd8c83c492238aafa8dba337601c",
    "signer": "0x7bF90aDB0D4f329e1dA9BB5123768023eD007adf",
    "userId": "111728084"
  }
}