{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "41804",
    "entityType": "User",
    "nonce": "0x37c09652ca284890f776bfa94fdc7135f6946036bd348b60fb71b4f5d84ce19b",
    "signature": "0x47ab7e8dceb03e2c5622b66a99afdeab9db2170b12afbd6eda6b2f991b4c415e25bd774ea59d88dd5dd53daa88f024cc7ecdc4b2d3502a76bebb803bfdbb62a61c",
    "signer": "0x5452f86EfcB1153FF9C10bdbe4103Ce25434D124",
    "userId": "620307004"
  }
}