{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "158193",
    "entityType": "User",
    "nonce": "0x61c8681898a5eafb33b40230c2ce25702f65768537da1a74c4d9448caad777c9",
    "signature": "0x9b89fc3be8954eea5c7b6b87f3eb290d53d62b4650be8e065490c7084542280b507785e58815f1a53c3c6f86adc6b8dfbfe68fcfabab9735428622314b1341b71c",
    "signer": "0x7d0321da167AE8932c30b69fFec2F6141bb192Ab",
    "userId": "115792"
  }
}