{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x3f5bcf5eed2b64a9a74edc24103a20338c340f3cd29317e1ccf5eab8e2e5172e",
    "signature": "0x4718ce8f61c12b43343f8ce15b0afaf2137268e074afeb4f014d1e9c2a104a68228078af58cfb4dd09a9499c09035a6aa0e754357a0975af2967fc1e5c49ed931b",
    "signer": "0xBa078faF8515EBE52d86589113e937F9C99566a2",
    "userId": "985569408"
  }
}