{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "291030360",
    "entityType": "User",
    "nonce": "0x2876591bc35ac137cfae09b525292a5cc9549a1f7870da45abe7d7c8a5e3a2f5",
    "signature": "0x480040da9e3542fc5c2f81d9a9a1ed0337ce841a7bb511701f1f8e78589389366719cd2c7a619fb18cdef01050e74ad3daa6fcb42dbaf37310be2fa52a1b43e01b",
    "signer": "0x24EB8cdE5605b86b2ac2d2EF049f85BBe3B90E28",
    "userId": "993204852"
  }
}