{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "708077815",
    "entityType": "User",
    "nonce": "0x2c6f3cca78874377ae49f77f804ac064a300c5cc0d7a34aec0077a5477332236",
    "signature": "0x2cc7fa3b2daa3f8bc85e446b65e83f36c8821edf29cad7e20a4666ec721a38a955b56bd88525407ace12d36ed34dd9457e06970c292e88c047d16314171466a41b",
    "signer": "0x84B42609E987DD0953e02498E61987fB833B7C92",
    "userId": "887547386"
  }
}