{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x784053c64050d6576d14280b6a97a2742a2bb1bd6ad2a9e4af39cc12b1bad370",
    "signature": "0xe3c731f86e5a5ca42f7886f1d3fb2b3b10413f5b49c8f5aa13b03a41232c3da9478789074827349fa7f493f209040b99db34a1498baf2df322e51ac3b6f181a31c",
    "signer": "0x6E1E443008E46412225A18E5CE617CaE26954800",
    "userId": "473283799"
  }
}