{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "139859",
    "entityType": "User",
    "nonce": "0x0e35eefadb0d26f116289d1688b4e4877caabcddd9437e2db4992d87483452a8",
    "signature": "0x7d9506426b19c01ef5c272a012af751f906e4d1de9eb4a5dc0e917dc82a2aad36fc29a8b9e3d32fedc131b307c3b06a5ae0d04d912388cd2a02c0686ca229ee61c",
    "signer": "0xb7C7a8D9d12EBd1Cd438cB065E97280E6D7e912A",
    "userId": "984691913"
  }
}