{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "472403777",
    "entityType": "User",
    "nonce": "0x5e46580b265dcfe89eee888f0ad2f12860c4edc240460eda00eb701b25d7029f",
    "signature": "0x42610300aa155c777e4c2738321bbe31d19adf028097c74b8a71aad7107021bf3e92674c60fd12036b53cfacc5a578a63add40b14c2aa95f917553e6bf84c7ed1b",
    "signer": "0xa2DaB1ebF6D10325b0948C994b592F7abB2Df44C",
    "userId": "728570067"
  }
}