{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "296985",
    "entityType": "User",
    "nonce": "0xde0553bfc92c4841c5ae2986813ff26d1a10bac0b4d45c50dff1d9c78c81e6e1",
    "signature": "0x5153d8f092a96e58a1a02bd56a90c720cfb24ff572f04bdb4bc67f43ef5855c70793ba304af80677ee539bb9c3823e28aae4f50ae3ef0faf709d619e8d5f4b9e1c",
    "signer": "0x55F8937EF7902E83b15F5BB7c7bf72a0a2989C54",
    "userId": "233666542"
  }
}