{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "350152441",
    "entityType": "User",
    "nonce": "0x18c9a1a7ea3cd6a53dd2f0e48e2d3d80a113b615d4b3081c9de18605a978f53f",
    "signature": "0xc35219caecdd2cbffe7024a287127f61ae494a877d50fbe5ba1ee96c5a8b1dda5e6318437bb61fcaf008a45f907cdb2294c865f47c1f653b097238739fcdeaf51c",
    "signer": "0x94e0dDC50579175818AaCFBC9aba8B065fEf2a55",
    "userId": "460147282"
  }
}