{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x70d9885b808921c5105bd1e8d642efbce0479bb15544c62b376befed1fd8578b",
    "signature": "0x49c7b078cc21e4e6981c3b6f82621c603a56b3866c724bc0a401264c6c9dc7ed651b7338c31763e3d8ef2ec86f1cc79bddce406bf0c1b5fca7da8af2d7a916a21b",
    "signer": "0xd102d4cEc0c17a019c428345434F0763caE1Bc60",
    "userId": "481331278"
  }
}