{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "297394",
    "entityType": "User",
    "nonce": "0xbe273c33197f70c30f44e0f28239ffebe9056a220ed573031db48b486174b3e0",
    "signature": "0xe35c229258e9502725f83e1b11d70509975ead0df1e403380767421ae84db0277bc4b282c298f652a3d70fef581ae9ccb51e068a2c1dc4b0c635f69bcdc9f4bf1c",
    "signer": "0x2D566E1DaC6fc148a694abe846B32e39B6584aa5",
    "userId": "890889753"
  }
}