{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "394114",
    "entityType": "User",
    "nonce": "0x764f21a1157a42d2360de65f2f8243eed556699b6dce8dff3b82e58f01063537",
    "signature": "0xe73cc61fde396682a3bd13b2016a7414c11053233ad818cd2da285241363f5f64acceeb1b3e91da0c5e79d84972e8ed97911ad8c1f222010e6ffdb47aeceaf031b",
    "signer": "0x55F8937EF7902E83b15F5BB7c7bf72a0a2989C54",
    "userId": "233666542"
  }
}