{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x4d037c24f8c89f6e76e9a87bef9bad4d3ba3b0e668de73524db5ffcf0b1d769c",
    "signature": "0x4cbd3df1442de732a21d1df77d3c26993d99159910e48acc0d70a326e1eedb8364d8f5e37c91979f3335f9d0d03981fb56f96db9b9e22164189b53cd2f63b5e31b",
    "signer": "0xf92651Eb0C69d7966E31d5C30cDb071f5Ad966e1",
    "userId": "621627844"
  }
}