{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "137751",
    "entityType": "User",
    "nonce": "0x47eb882d83d72511f6cfb549fea556620423b939135b88b8ae1ddc8ec6e17ec5",
    "signature": "0x2dedbeeb4f786ad49a2cfcfb7458a2cc43fa27ee79b94f601dd8f73424c741bb49011112fb2db07d1a70cea3bbf0ad9423b97fd6d4ac8c6c059d44da2027c7fb1b",
    "signer": "0x2F87bb373089af6C75e3362077A0E52A4779f72c",
    "userId": "582715056"
  }
}