{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "154027249",
    "entityType": "User",
    "nonce": "0x41cccea55b056c9d42802647d546ccc0e4b56c73854a154c0abdae495b14eb99",
    "signature": "0x0d31f311606eb2f24a9ecf674ce1bba1442b6d963dd0754c107634ef64dcebbe7f4c28d8e293bf7a522733af3e53397253b4ce7e06f49394d890548135938d021b",
    "signer": "0xC7B16Eee24C03712c67aa884907593f4df23db87",
    "userId": "56534466"
  }
}