{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "43487",
    "entityType": "User",
    "nonce": "0xeea0f36b867c33d119debbbfb1d6bd144aa594836ebfcca4505857b4f8cf00cb",
    "signature": "0xc2a9fc4b218ccd20cb81f20e1825fae6b21cb815cbf7ab68597e3bd99024064c737e748b0adba9dd9bbf1ae63cd361d35090a62e5d5c54df38a92bd6562e9c3e1b",
    "signer": "0xb8909c41963586dbBe3EbbAB4FC8F1f8E6970Ce2",
    "userId": "435332232"
  }
}