{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "385517",
    "entityType": "User",
    "nonce": "0xe96800ef568f137353286df4fdb793e70374b9972f1b15e35fe2d8e36e8ccbf8",
    "signature": "0x1fec472ef5b86b40406b6b028195742a6b9e69b1baa47f80ea018dd8ddbe45e4360dc3926122f0970c71b9b1c8cf7c68eb524c398a6bc0d8495c12afd3f213531c",
    "signer": "0x712Aca9aA6ac07F98dcEC338Be9C15c3Dc47d569",
    "userId": "12730129"
  }
}