{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "190351",
    "entityType": "User",
    "nonce": "0x83ca86a9f8ccdec166ba6ecf17158d7ae4d99561805eb0e764c280accbc92a14",
    "signature": "0x1d043e8c2335ef1437e626a1eb80d77ae249be908f90061a0ee665a911519fc07fd370a550f822b3a15454daa948e97b78de39332cfef12144255a6e4eb1357f1c",
    "signer": "0x7eBAab495a64FAea1f04dc59ff804bf939da7B12",
    "userId": "709077025"
  }
}