{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "446645802",
    "entityType": "User",
    "nonce": "0x91b98e5bc3d9eccadb18ce94e38aeec40059a93757025e4c39432b87b80c3fee",
    "signature": "0x22246239b0e8da344799da18d4222417e735216562046e97e72aa807545f018e5c540b927ae3ad17b579703660a0070328acf907a31fa08ab17e8a7cf7d3d5f61b",
    "signer": "0x647204eDe2dcB8e40793BB48e4bb4Be7ab706de5",
    "userId": "580720856"
  }
}