{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "20",
    "entityType": "User",
    "nonce": "0xd954d9a27e71bc4e09dc5a0c57987656d9908eb47997f6b28fec8d2363eb8e32",
    "signature": "0x1053c271cbed1e19338f1835c6ab6901bc7614b3c9b1d211ebb576ffc590998955e3981377ca1b6bee23d156f5e40239ce693028dac71c997521625fe5d53e341c",
    "signer": "0x59765b22C96E88dA578af23E8611d6ca2dcCd7C9",
    "userId": "377610060"
  }
}