{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "708552716",
    "entityType": "User",
    "nonce": "0x3c862f73143f7b47c5a9258f16fe83bdbdcd753b3c5a7e7dcc0edb9ababb1a89",
    "signature": "0x9043e4f150cb95042ad9347375e44fd5d0c330b5b8407f8f918fddcab359928e377ab8b63070cd4ec2fd7cd9a1b0352ea517f62ae2b5a1034f65ae4dfe6794751b",
    "signer": "0x94e0dDC50579175818AaCFBC9aba8B065fEf2a55",
    "userId": "460147282"
  }
}