{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "974949602",
    "entityType": "User",
    "nonce": "0x8c408d7c5aac9c97461dc2861b16a4e6f741fbf7f1b978e502aa12a742299250",
    "signature": "0x9f1d23cbf067eb70ac96ac9cb96ff1fe0fb61c65f1f683f232a74f0c542a12e007475597a742048fc36b436e076c61c08c9a814d8aa6984da6f2f9ee8e8319af1b",
    "signer": "0x262a2A1c96da0dFD6f33595c8D775BefA860d02e",
    "userId": "486490947"
  }
}