{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "64159186",
    "entityType": "User",
    "nonce": "0x950bd79891ee4b0c70f873d16b29196f56c6a11053ca6304eae7b5bf099ac7e2",
    "signature": "0xf08d8861921334c4a7eb7039cafccdedc6216e33224ba60be0c67b8076000b4e25b681dbc2a65d12294e758f231287104691716eb328df8c4c0fd14c769b9e991c",
    "signer": "0xe4ef0d36c112017cfB32ae9F7285AfF3CC333609",
    "userId": "566234743"
  }
}