{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "101876",
    "entityType": "User",
    "nonce": "0x21319d6f31445d5ae82102a4e050da36ce010c51efb23aebb8cb11569da1b494",
    "signature": "0xf2506458ffb5baa30d16d3752a7ad0547bda7cc89307e6d3cd3c0b55fdd8169727b99d6e877005bfc75b120906a0b50a73e1d292e16e65a3f45cd1c41e18436a1c",
    "signer": "0x8fb06be829c5718Bb968af1525d910B795617ac0",
    "userId": "950478625"
  }
}