{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "948329777",
    "entityType": "User",
    "nonce": "0xeb438a785408f072c2767d747269f56950ee1be03889ffadc1e040ef91ceafa1",
    "signature": "0xf5ff8ce924aeb54f7034bffec0a66722831d1e2a32c8c2df4d7f176fd30f91c77dcb31c9282dd046e3036866d6d099c4d1a3a7d5377270083da9967ff42b535e1c",
    "signer": "0xbbB98413eB671bb0000F0b18A2A7Cae9631043E1",
    "userId": "98311147"
  }
}