{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "283478",
    "entityType": "User",
    "nonce": "0x2b8241b9f1163f53a0fb3c55c26af83e30405d5f3ba89b55b23dd6c446496979",
    "signature": "0xbb267795d228f154f8c3d9500a823344485c4cf124ed859eb38704a9865249a251f03aa1374dc4d8cdf71509542d5879f010e7525b3698fbdee779c9ea3310391c",
    "signer": "0x55B320FE4ae0dC96fE927A1d4fA23b18d1874EF1",
    "userId": "562822143"
  }
}